Third Trimester

Week 34: Most babies born at 34 weeks survive and thrive with minimal intervention.

Here's everything happening with your baby and your body this week.

Baby size at week 34: Cantaloupe
Your baby is the size of a
Cantaloupe
Length
17.7 in
Weight
2.1 kg
Week
34 / 40
💡 Expert tip

Review signs of preterm labor: contractions every 10 min or less, low back pain, pelvic pressure, unusual discharge, or leaking fluid.

🌱 Baby's development this week

Science fact

At 34 weeks, the fetal brain is only 65% of the volume it will be at full term (40 weeks). The cortical surface area more than doubles in these final weeks as the characteristic folds (gyri) deepen. This is why each extra week in the womb meaningfully improves outcomes.

🤰 Your symptoms this week

Baby dropping sensation
sudden easier breathing but increased pelvic pressure; normal
Increased Braxton Hicks
practice contractions intensifying; time them if regular
Practice contractions — normal from mid-pregnancy. Stay hydrated, change position, rest.
Pelvic pressure and
baby has descended; walk and move regularly to ease discomfort

💛 Changes in your body

💙 Mental health this week

Birth plan finalization is emotionally significant. Having preferences on paper reduces anxiety even if birth doesn

🥗 Nutrition focus

📅 Appointment / test

GBS swab test offered at 35–37 weeks — a quick vaginal swab to detect group B streptococcus.

✅ This week's checklist

Start daily perineal massage — 5 minutes, use coconut or vitamin E oil
Finalize hospital bag — include birth plan, snacks, comfortable clothing, baby outfit, car seat
Confirm your birth support team is ready and knows the plan
← Week 33
Week 34 of 40 View all weeks
Week 35 →

Track your pregnancy week by week

Interactive guide · 40 weeks · Fruit size visualizations · Personalized tips

Open Week 34 in Interactive Guide → →